Car-coupling.



No. 738,727. PATENTED SEPT. 8, 1903.

S. G. MASON.

GAR COUPLING.

APPLICATION FILED JAN. 5, 1903.

no MODEL. s 8HEETSSHEET 1.

1n: Marin PEYQHS cow. rgonzumq wukmmm n. c,

No-738,727. PATENTED SEPT. 8, 1903."

S. G. MASON.

GAR COUPLING.

IAPPLIGATION FILED JAR. 5, 190a.

FIGS.

FIB-.4

Tn: NOIRRKS PETER $0.. humumon WASNINOYON -n. c.

PATENTED SEPT. 8, 19'03.

. s. 0. MASON.

GAR COUPLING.

APPLICATION FILED JAN. 5, 1903.

3 SHEETS-SHEET 3.

no MODEL.

' INVENTOR WWCWMM 25 parts in normal or closed position.

UNITED STATES A Patented September 8%, 1903.

PATENT OFFIGE;

STEPHEN. C. MASON, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR To MOOON- wAY AND TORLEY COMPANY, OF PITTSBURG, PENNSYLVANIA, A COR- PORATION OF PENNSYLVANIA.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 738,727, dated September 8, 1903.

Application filed January 5, 1903. Serial No. 137,820. (No model.)

To ttZZ whom it may concern:

Be it known that I, STEPHEN 0. MASON, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered A certain new and useful Improvements in Car- Couplers, of which improvements the following is a specification. The invention described herein relates to y to certain improvements in car-couplers of the Master Oar-Builders or swinging-hook type, andhas forits objectcertain improvements in the constructionand arrangement of locksets and knuckle-opening devices. I The invention is hereinafter morefully described and claimed.

In the accompanying drawings, forming a part of this specification, Figure 1 is a sectional plan view of a Master Car-Builders type of coupler having my improvements applied thereto, the plane of section corresponding to the upper surface of the swinging hook. Fig. 2 is a sectional elevation on plane indicated by the line II II, Fig. 1, showing the Fig. 3 is a similar view showing alocking block or pin' in unlocking position and supported by the lock-set. Fig. 4 is a view similar to Figs. 2 1 and 3, showing a locking block or pin raised 30, to effect a shifting of the knuckle. Fig. 5 is a perspective view of a locking-block, knuckle-opener, and look-set; and Fig. 6 is a simi- 3 lar View of the same parts, illustrating a modification of my improvement.

5 In the practice of my invention the coupler as regards its head 1, knuckle 2, and

locking-block 3 is constructed in the usual or any suitable manner, excepting in so far as regards certain changes inthe locking-block o hereinafter stated. Suitable bearings on the end wall "of th coupler are provided for the shaft 4, said shaft being provided with an arm 5, projecting radially therefrom in such manner that when the latter is rotated the arm will bear againstthe rear side of the tail of the knuckle and force the same to open position. A

lever 6 is arranged within a vertical recess in the locking-block 3 and hasits lower end conmatio.

I nected to the shaft 4 in any suitable manner,

as by a bent finger 7. The lever is provided with a lateral projection or finger 8, extending through opening in the side of the locking-block near its upper end in such manner that when the latter is raised as hereinafter 5 5 described the lever Will be caused to move with the locking-block, and thereby rotate the shaft 4 to eifect an opening of the knuckle. The opening in the side of the locking-block through which the finger8 projects is made of such a length as will permit of an upward movement of the locking-block to unlocking position before the shoulder 9 or lower end of the opening engages the finger 8, so that there will be no upward movement of the lever until the knuckle has been unlocked. The vertical slot or recess formed in the lock- 'ing-block for the reception of the lever and locking position. The lever is so arranged and supported that the lateral movement is auto- In the construction shown in Figs. 1 to 5, inclusive, the pivotal support for the lever is formed by a projection or lug 12 on the lever, having as its support the bottom wall of the coupler-head. In the construction shown in Fig. 6 the pivotal support for the lever is formed by the finger 7 on the shaft 4, said finger being closed around the lower end of the lever sufficiently far to prevent accidental disengagement of the parts and the lug 12 being omitted. It will be observed that the lever or look set has its pivotal support so arranged that the lever is inclined or has a bias to move to operative or supporting position, In order to permit of a shifting of the lock-set byha'nd, the finger 8 is made of suffieient length to extend through a horizontal slot 13, formed in the guide-box 14 for the locking-block.

In describing the operation of my improvement it will be supposed that the knuckle is closed and locked, the parts beingin the position shown in Figs. 1 and 2. To unlock the knuckle, the locking-block is raised to the position shown in Fig. 3, in which position the lever will move laterally on its pivotal support to bring the shoulder 10 under the locking-block and support the same in its raised position. During this initial movement of the locking-block no vertical movement is imparted-to the lever. While the parts are in this position the knuckle can be opened, and in its opening movement the projection 15 on the tail of the knuckle will strike against the shoulder 10 or other part of the lever 6 and shift the same laterally, thereby'moving the shoulder 10 from engagement with the locking-block and permitting the latter to drop onto the tail of the knuckle, so that the locking-block will be free to drop to locking position so soon as the knuckle is shifted to closed position, the tail of the latter passing from under the locking-block. When it is desired to effect an opening of the knuckle simultaneous with the unlocking of the same, the locking block or pin is raised beyond unlocking position and during this further movement will draw up thelever with it, thereby rotating the shaft 4 and openingthe knuckle. The opening of the knuckle will effect a shifting of the lever to unlocking position by thestriking of the inclined shoulder 15 against the projection 10, the same as if the opening of the'knuckle had been effected by hand. When the locking -pin is released after opening the knuckle, it will drop, and during the corresponding downward movement of the lever the inclined lower edge of the projection 10 will strike against'an inclined portion 15 on the tail of the knuckle, and thereby shift the lever to unlocking position and. permitting the locking-block to drop onto the tail of the knuckle. It will be observed that the locking block and lever will effect during their downward movementaback rotation of the shaft and knuckle, opening arm 5. Y 4

'I claim herein as my invention- 1. A car-coupler of the Master Car-Builders type having in combination a swinging hook or knuckle, a locking block or pin and a lock-set arranged within the locking-block and so pivotally supported at its'lower end as to have a bias toa position to support the locking-block when the latter is raised to unlocked position, substantially as set forth.

2. A car-coupler of the Master Oar-Builders type having in combination a swinging hook or knuckle, a locking block or pin, a lever arranged vertically within the lockingblock, and having a pivotal support at one side near its lower end so as to have an inclination to move to a position to move when the latter is raised to locked position, and normally held in inoperative position by the internal wall of the locking-block, substantially as set forth.

3. A car-coupler 0f the Master Oar-Builders type having in combination a swinging hook or knuckle, a slotted locking-block, a lever loosely arranged in said block, said parts being so connected as to permit the block to move to unlocking position independent of the lever, and a shoulder on the lever adapted to support the locking-block when raised, substantially as set forth.

4. A car-coupler of the Master Oar-Builders type having in combination a swinging hook or knuckle, a slotted locking-block, a lever loosely arranged in the locking-block and provided with a finger projecting through an opening in the side of the locking-block, and having a shoulder adapted to support the locking-block when raised,substantially as set forth.

5. A car-coupler of the Master Oar-Builders type having in combination a swinging hook or knuckle, a slotted locking-block, a-le ver loosely arranged in said slot and provided with a finger projecting through an elongated opening in the said side of thelocking-block and having a shoulder adapted to support the locking-block when raised,.and a knuckle-opener connected to said lever,.sub-

stantially as set forth.

6. A car-coupler of the Master Oar-Build- A ers type having in combination asvyinging hook or knuckle, a locking block or pin, a

knuckle-opener, means operating automat hook or knuckle, a locking pin or block, alever movable by the locking-block and adapted to support the locking-block when raised,.an'd

a knuckle opener connected to said lever,

substantially as set forth.

In testimony whereof I have hereunto set my hand.

STEPHEN O. MASON.

Witnesses:

F. D. ECKER,

J. W. HARTLEY.

IIO 

